The community first appeared as a
census designated place under the name
Robertsville in the
1980 U.S. census. The CDP was renamed as
Morganville for the
2000 U.S. census. The original name was restored to
Robertsville for the
2010 U.S. census.
Racial and ethnic composition 2020 census As of the
2020 census, Robertsville had a population of 11,399. The median age was 44.5 years. 23.5% of residents were under the age of 18 and 17.2% were age 65 or older. For every 100 females, there were 98.3 males; for every 100 females age 18 and over, there were 95.2 males. 100.0% of residents lived in urban areas, while 0.0% lived in rural areas. There were 3,758 households, and 38.7% had children under the age of 18. Of all households, 73.4% were married-couple households, 7.9% were households with a male householder and no spouse or partner present, and 16.4% were households with a female householder and no spouse or partner present. About 13.0% of households were made up of individuals, and 7.8% had someone living alone who was 65 years of age or older. There were 3,833 housing units, of which 2.0% were vacant. The homeowner vacancy rate was 0.3% and the rental vacancy rate was 6.3%.
2010 census At the
2010 census, there were 11,297 people, 3,792 households, and 3,230.784 families living in the CDP. The population density was . There were 3,941 housing units at an average density of . The
racial makeup of the CDP was 84.21% (9,513) White, 2.39% (270) Black or African American, 0.03% (3) Native American, 11.7% (1,324) Asian, 0.01% (1) Pacific Islander, 0.59% (67) from
other races, and 1.05% (119) from two or more races. Hispanic or Latino of any race were 4.05% (458) of the population. Of the 3,792 households 42.4% had children under the age of 18 living with them, 77.3% were married couples living together, 6.0% had a female householder with no husband present, and 14.8% were non-families. 13.0% of households were made up of individuals, and 7.1% were one person aged 65 or older. The average household size was 2.98 and the average family size was 3.27. The age distribution was 27.0% under the age of 18, 6.3% from 18 to 24, 20.2% from 25 to 44, 33.7% from 45 to 64, and 12.7% 65 or older. The median age was 42.8 years. For every 100 females there were 95.3 males. For every 100 females ages 18 and older there were 92.3 males. ==Education==